CN218570398U

CN218570398U - Noise-reduction and RF interference-resistance all-directional microphone

Info

Publication number: CN218570398U
Application number: CN202222784790.XU
Authority: CN
Inventors: 何仕安; 罗彤; 姚海平
Original assignee: Kingstate Electronics Dongguan Co ltd
Current assignee: Kingstate Electronics Dongguan Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-03-03
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses an anti RF interference of making an uproar falls directional microphone entirely, including protective housing, protective housing installs the radio network by middle position fixed mounting in top, the bottom fixed mounting of radio network has the speech recognition structure, protective housing installs the dust screen by middle position fixed mounting in bottom, the position fixed mounting who leans on the upside in the middle of the protective housing front end has the switch, the bottom fixed mounting of speech recognition structure has the second gasket, the bottom fixed mounting of second gasket has the membrane ring, the bottom fixed mounting of membrane ring has the insulating ring. This microphone can open the switch at the during operation, makes the microphone carry out work, and during the working period, the new structural design of this application increases the gasket of three breach, and the copper sheet also increases two breachs, can lose heart after such design equipment for the inside pressure difference that produces of microphone, just so can attenuate the sensitivity of low frequency and high frequency part.

Description

Noise-reduction and RF interference-resistance all-directional microphone

Technical Field

The utility model relates to a microphone technical field specifically is a fall anti RF interference omnidirectional microphone of making an uproar.

Background

The omnidirectional microphone comprises a packaging structure consisting of a circuit board and a shell, wherein the bottom of the shell is provided with a sound hole capable of receiving sound signals, and the microphone with the structure has a larger volume of a sound cavity formed by surrounding a parallel plate capacitor, a conducting ring and the circuit board, so that the frequency response curve of the microphone tends to be upwarped within a certain range.

Reference is made to the "a portable full directional microphone apparatus", patent No. (CN 106658251A), which includes: microphone, with external wire rod, the cover that microphone electric property is connected are established shell on the microphone, the shell include the lower cover and with lower cover complex upper cover, be equipped with between lower cover and the upper cover and hold the accommodation space of microphone, the first terminal surface of upper cover is the curved surface, the centre of curved surface is equipped with the sound receiving hole, the inside of upper cover is equipped with first semicircle groove, first semicircle groove sets up closely sound receiving hole department, the second terminal surface of upper cover is equipped with external wire rod's outlet, and this patent has solved the simple electric characteristic performance of present common all directional microphone through above-mentioned part structure and has shown the standard moment, and with popular microphone shell design matching back, holistic sound receiving characteristic is general, and sensitivity and SNR are all lower moreover.

When carrying the microphone, the volume that needs the microphone is less, but the microphone that is less can lead to the microphone inside can't deflate, just so can't attenuate the sensitivity of low frequency and high frequency part, and the processing effect to the sound is poor, and above-mentioned patent does not notice this place, and this patent is the application that this just is carried out to this.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti RF interference omni-directional microphone of making an uproar falls to propose the problem that the microphone can't handle the sensitivity of high frequency part in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti RF interference of making an uproar directional microphone falls, includes protecting sheathing, the protecting sheathing top is leaned on the fixed position in the middle of installing and is received the sound net, and the sound net can be better absorbs outside sound, the bottom fixed mounting that receives the sound net has the speech recognition structure, and the speech recognition structure can be used to the headset and fall the noise earphone, speech recognition product, the protecting sheathing bottom is leaned on the fixed position in the middle of installing the dust screen, and the dust screen can prevent that the dust from getting into, the fixed position who leans on the upside in the middle of the protecting sheathing front end installs the switch, can open or close the microphone through the switch.

Compared with the prior art, the beneficial effects of the utility model are that:

this microphone can open the switch at the during operation, makes the microphone carry out work, and during the working period, the new structural design of this application increases the gasket of three breach, and the copper sheet also increases two breachs, can lose heart after such design equipment for the inside pressure difference that produces of microphone, just so can attenuate the sensitivity of low frequency and high frequency part.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a top view of the present invention;

fig. 4 is a structural circuit diagram of the present invention.

In the figure: 1. a protective housing; 2. a switch; 3. a sound receiving net; 4. a dust screen; 5. a copper sheet; 6. a first spacer; 7. a back plate; 8. an insulating ring; 9. a membrane ring; 10. a second gasket; 11. a speech recognition structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a noise reduction and RF interference resistance all-directional microphone is characterized in that a second gasket 10 is fixedly mounted at the bottom of a voice recognition structure 11, two notches are additionally formed in the second gasket 10, and the noise reduction and RF interference resistance all-directional microphone can be designed and assembled to be air-leaking, so that pressure difference is generated inside the microphone, and sensitivity of low-frequency parts and sensitivity of high-frequency parts can be attenuated.

The bottom of the second gasket 10 is fixedly provided with a membrane ring 9, and the membrane ring 9 can vibrate.

The bottom of the membrane ring 9 is fixedly provided with an insulating ring 8, and the insulating ring 8 can insulate and cut off electricity.

The bottom of the insulating ring 8 is fixedly provided with a back plate 7, the back plate 7, and two electrodes of the chemical power supply are composed of active materials and current collectors for supporting and conducting electricity, and are generally sheet-shaped porous bodies called polar plates.

The bottom of the back plate 7 is fixedly provided with a first gasket 6, and the first gasket 6 can support part of the arrangement.

The copper sheet 5 is fixedly arranged at the bottom of the first gasket 6, two gaps are additionally formed in the copper sheet 5, and the design can be deflated after being assembled, so that pressure difference is generated inside the microphone, and the sensitivity of low-frequency parts and high-frequency parts can be attenuated.

The working principle is as follows: open the microphone through switch 2, then alright with the beginning work, during the work, the gasket of three breach is increased to the new structural design of this application, and copper sheet 5 also increases two breachs, can lose heart after such design equipment for the inside pressure difference that produces of microphone, just so can attenuate the sensitivity of low frequency and high frequency part.

In summary, the following steps: this microphone can open switch 2 at the during operation, makes the microphone carry out work, and during the during operation, the new structural design of this application increases the gasket of three breach, and copper sheet 5 also increases two breachs, can lose heart after such design equipment for the inside production pressure difference of microphone, just so can attenuate the sensitivity of low frequency and high frequency part.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A noise-reducing and RF interference-resisting omni-directional microphone comprises a protective shell (1), and is characterized in that: protective housing (1) top leans on middle position fixed mounting to have radio receiving net (3), the bottom fixed mounting of radio receiving net (3) has speech recognition structure (11), protective housing (1) bottom leans on middle position fixed mounting to have dust screen (4), the position fixed mounting who leans on the upside in the middle of protective housing (1) front end has switch (2).

2. A noise reducing, RF interference resistant omni-directional microphone according to claim 1, wherein: and a second gasket (10) is fixedly arranged at the bottom of the voice recognition structure (11).

3. A noise reducing, RF interference resistant omni-directional microphone according to claim 2, wherein: and a membrane ring (9) is fixedly arranged at the bottom of the second gasket (10).

4. A noise reducing and RF interference resistant omni-directional microphone according to claim 3, wherein: and an insulating ring (8) is fixedly arranged at the bottom of the membrane ring (9).

5. The noise reducing, RF interference resistant omni-directional microphone according to claim 4, wherein: and a back plate (7) is fixedly arranged at the bottom of the insulating ring (8).

6. The noise reducing, RF interference resistant omni-directional microphone according to claim 5, wherein: and a first gasket (6) is fixedly arranged at the bottom of the back plate (7).

7. The noise reducing, RF interference resistant omni-directional microphone according to claim 6, wherein: the bottom of the first gasket (6) is fixedly provided with a copper sheet (5).